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Finding the Fourth Proportional to 20,061.40, 30,092.10 and 16,835.80

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Solution

The fourth proportional to 20,061.40, 30,092.10 and 16,835.80 is: 25,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.40 : 30,092.10 = 16,835.80 : x
  2. Step 2: Convert to fraction form
    20,061.40/30,092.10 = 16,835.80/x
  3. Step 3: Cross multiply
    20,061.40x = 30,092.10 × 16,835.80
  4. Step 4: Simplify right side
    20,061.40x = 506,624,577.18
  5. Step 5: Solve for x
    x = 506,624,577.18/20,061.40
  6. Step 6: Final answer
    x = 25,253.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.